Motion picture apparatus of the magazine type



Oct. 12, 1937.

o. WITTEL MOTION PICTURE APPARATUS OF THE MAGAZINE TYPE Filed April 24, 1956 INVENTOR:

v w ATTORNEYS.

Patented Oct. 12, 1937 2,095,850

UNITED STATES'PATENT OFFICE Otto Wittel, Rochester, N. Y., assignor, by mesne assignments, to Eastman Kodak Company, Jersey City, N. J., a corporation of New Jersey Application April 24, 1936, Serial No. 76,172 In Great Britain February 5, 1936 7 Claims. (Cl. 8818.4)

The present invention relates to the removal only is shown and described as applied to a moof film magazines from motion picture apparation picture camera. tus of the magazine type and more particularly Said motion picture camera comprises 8. casto an arrangement whereby the closure means ing I having an upper edge wall H, a rear edge for light-sealing the film magazine at the same. wall l2, a bottom edge walll3 and a front edge 5 time moves the film claw out of engagement with wall II. An objective I5 is attached to the front the film strip within the magazine. edge wall of the casing II].

It has long been recognized that the film ad- Said casing I0 is provided with a magazine vancing mechanism may be located so as to exchamber which is formed by a mechanism plate tend into a film magazine for movement of the IS, a front plate H, a supporting member l8, l0 film therein. Such arrangement, however, genthe upper edge wall It and rear edge wall l2. erally limits the design of the apparatus by com- A cover plate It! encloses a mechanism chamber pelling rearward movement of the magazine from in the forward end of easing III. the engaging means for removal from the ap- The film magazine, see Fig. 2, comprises a casparatusv ing with a side wall 2| and an edge wall 22 15 The primary object of the present invention is extending around the edge of side wall 2|. An the provision of a closure means on a film magaauxiliary wall 23 is attached to edge wall 22 zine for removing the film claw from the film and extends along the front and upper portions perforations during movement of the closure thereof, being spaced a slight distance from edge 20 means to closed position so that the film magawall 22. A flexible shutter 24 is slidably posig0 zine may be removed in a lateral direction from tioned between edge wall 22 and auxiliary wall the apparatus. 23, being operated by a pin 25 which extends Other and further objects of the invention through a slot 25 in the upper portion of edge will be suggested to those skilled in the art by wall 22. The front portions of edge wall 22 and 5 the description-which follows. auxiliary wall23 are each provided with exposure 25 The above and other objects of the invention apertures 27, while edge wall 22 is provided with are embodied in a motion picture apparatus of a claw slot 28 and auxiliary wall 23 is provided the magazine type including a film advancing with a claw slot 29 in registry with said claw means having a claw which is resiliently urged slot 28. The film F is held in position across 3 into engagement with the film strip within the the inner exposure aperture 21 and across the 30 magazine in combination with a film magazine claw slot 29 by a presser pad 30 which is provided having a closure means for covering the opening with a depression 3| opposite the claw slot 29. therein and for engaging the claw of the film A cover 32 fits over the margins of magazine advancing means to move the same out of encasing 20 to enclose the same.

gagement with the perforated film strip in the The film magazine is positioned within said 35" magazine during movement of the closure means magazine chamber by means of a plurality of to closed position. spring members, spring member 33 bears on the Reference is hereby made to the accompanyrear edge of magazine casing 20 to press the ing drawing wherein like reference characters forward portion of edge wall 22 against the designate similar elements and wherein: front plate ll of the camera casing, a spring 40 Fig. l is a side elevation of a motion picture member 34 bears on the upper edge of magazine apparatus of the magazine type. casing 20 to press its lower edge against sup- Fig. 2 is a fragmentary crosssection through a porting member I8, and a spring member 35 portion of the film magazine and illustrating the overlaps the magazine chamber and a portion film advancing mechanism according to the inof the cover 32 for the magazine casing to press 45 vention. the side wall 2! of said casing 20 against the Fig. 3 is also a fragmentary cross-section mechanism plate l6 within the camera casing. through the front wall of the magazine. As a result the film magazine is accurately posi- Fig. 4 is a fragmentary transverse cross-sectioned within the magazine chamber and may tion through the motion picture apparatus and be removed from said chamber by an ejector 50 illustrating the 'latching means for the cover mechanism 36 which is fully disclosed in my cothereof. pending application, Serial No. 1,372, filed Janu- The invention herein disclosed may be applied ary 11, 1935, for Improvements in ejector for to all kinds of motion picture apparatus of the motion picture apparatus of the magazine type.

magazine type but for purposes of illustration Thefilm advancing means may be of any con 55 resiliently urged into engagement with a perforated film strip. -For example, such film advancing means may comprise a driving disc 31 mounted upon a shaft 38, a claw arm 39 eccentrically pivoted on driving disc 31 and carrying a-claw 40, and a spring 4| bearing on the rear edge of claw arm 39 to urge claw 40 into engagement with the film strip. The claw arm 39 also carries a transverse pin 52 which may strike against the camera front plate II when the film magazine is removed from the camera so thatthe claw arm 39 cannot enter the magazine chamber to any substantial distance under the action of spring M. The claw 40 has a filmengaging edge 43 and a cam surface 44.

A single toothed cam 45' s also mounted on shaft 38 and may be blocked by a lever 46 which carries a button 47. Said cam 45 and lever 46 constitute the release mechanism for the camera which is of conventional construction.

A cover 48 is connected to the bottom edge wall l3 of camera casing 10 by a hinge 49. In open position of cover 48, as shown in Fig. 1, the magazine chamber is open at one side for ready insertion or removal of the film magazine. Said cover 48 is held in a closed position, as indicated in Fig. 4, by a latching means now to be described. Said latching means comprises a latching bar 50 slidably'mounted on upper edge wall ll of camera casing 10 and having a lateral flange 5|. A post 52 is mounted on cover 48 and provided with a slot 53 which in locking position of latching bar 50 is engaged by the lateral flange 5|. A finger button 54 is fastened to latching bar 50 and extends to the exterior ofcamera casing II). A saddle piece 55 is also mounted on latching bar 50 and receives the pin 25 on the flexible shutter 24 of the film magazine. Hence after closing camera cover 48 and operation of finger 54 toward the right of Fig. l, the latching bar 50 is moved so that lateral flange 5| engages the slot 53 in post 52 to fasten the cover in closed position and at the same time saddle piece 55 moves the pin 25 to the right so that flexible shutter 24 is moved to the open position shown in Fig. 2. The magazine camera is now in condition for operation.

.After completion of the camera run, the problem of removing the film magazine without fogging the film therein and without interference by the film advancing means is presented. Ac-

cording to the invention movement of the latching means to open position by shifting the latching bar 50 to the left moves the saddle piece and pin 25 to the left and lowers the flexible shutter 24 to cover the exposure apertures 21 and the claw slots 28 and 29. The cam surface 44 on claw 40 is engaged by the flexible shutter 24 so that the claw 40 and claw arm 39 are removed from the claw slot 29 and from engagement with the perforations in film F. The flexible shutterthen moves past claw 40 to complete the closure of claw slots 28 and 29 to the position shown in Fig. 3; Obviously, the removal of the film magazine would be very difficult without first repelling theclaw 40 from engagement with the film and from one of the claw slots. Furthermore, unless such closure of the claw slot is effected, several frames of the film adjacent that slot will become fogged.

Since the closure means for the openings and slots in the magazine maybe provided in many different forms and since the film advancing means including a spring pressed claw may as- ,ventional form which includes a claw which "is sume any one of the many known constructions, the present disclosure is to be considered in an illustrative sense and limited only by the followof the United States and what I claim is:

1. In a photographic apparatus, the combination with a magazine casing adapted to contain a perforated film strip and provided with an opening, and a film advancing means including a claw member having a cam surface and film engaging member which is resiliently urged into said opening to engage said perforated film strip, of a closure means for covering the opening in said casing and for engaging said cam surface to move said film engaging member out of engagement with said perforated film strip.

2. In a photographic apparatus, the combination with a magazine casing adapted to contain a perforated film strip and provided with an opening, and a film advancing means including a claw member having a cam surface and film engaging member which is resiliently urged into said opening to engage said perforated film strip, of a closure means on said casing for covering the opening therein and for engaging said cam surface to move said film engaging member out of engagement with said perforated film strip.

3. In a motion picture apparatus, the combination-with a magazine casing adapted to contain a perforated film strip and provided with an opening, and a film advancing means including a claw having a cam surface and-resiliently urged into said opening to engage said perforated film strip, of a closure means on said casing for covering said opening therein, for engaging the cam surface on said claw, and adapted upon movement of said closure means to move said claw out of engagement with said perforated film strip.

4. In a motionpicture apparatus, the combination with a magazine casing adapted to contain a perforated film strip and provided with an opening, and a film advancing means including a claw with a cam surface and including a resilient means for resiliently urging said claw into said opening to engage said perforated film strip,

of a closure means on said casing, movable into a closed position and an open position with respect to said opening, and for engaging the cam surface on said claw to move the same out of engagement with said perforated film strip during movement of said closure means to closed position.

5. In a motion picture apparatus, the combination with a magazine casing provided with an opening and adapted to contain a perforated film strip, and a film advancing means including a claw with a cam surface and including a resilient means for resiliently urging said claw into said opening, to engage said perforated film strip, of a closure means slidably mounted on said casing, movable into a closed position and an open position with respect to said opening, and for engaging the cam surface on said claw to move the same out of engagement with said perforated film strip during sliding movement of said closure means to said closed position.

6. In' a motion picture apparatus, the combination with a magazine casing adapted to contain a perforated film strip, provided with an exposure opening through which the film in the casing may be exposed, and provided with a claw slot, and a film advancing mechanism including a claw with a cam surface and including a resilient means for resiliently urging said claw into said claw slot to engage said perforated film strip, of a closure means on said casing, movable into a closed position and an open position with respect to said exposure opening and said claw slot, and for engaging the cam surface on said claw to move the same out of engagement with said perforated film strip during movement of said closure means to said closed position.

'7. In a motion-picture camera, the combination with a camera casing provided with a magazine chamber, a cover for enclosing said magazine chamber, a magazine casing provided with an opening and adapted to contain a perforated film strip and to be positioned within said magazine chamber, and a film advancing mechanism including a claw with a cam surface and including a resilient means for resiliently urging said claw into said opening to engage said perforated film strip, of a latching means between said cover and said camera casing, movable to a locking position to fasten said cover to said camera casing, and movable to an unlocking position to permit said cover to be opened, and a closure means on said magazine casing, movable into a closed position and into an open position with respect to said opening in the magazine casing, adapted to be connected to said latching means and for engaging the cam surface on said claw to move the same out of engagement with said perforated film strip upon movement of said latching means to unlock- I ing position and said closure means to closed position.

OTTO WI'I'IEL. 

